Woodpeckers are important members of the forest community. They consume gobs of wood-boring insects. And abandoned woodpecker cavities are real estate for bluebirds, chickadees, owls, squirrels and other wildlife unable to dig out their own homes. Seven species of woodpeckers are commonly found in the Midwest, and several will visit bird feeders supplied with suet or sunflower seed. A field guide and a pair of binoculars will help you identify which of these birds live in your neck of the woods.